20fcdd16f39016ad9b0fb620d78781f33d810b8cd12afab033dff7af8c05f9fc

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 19:12

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General

Target

Screen_Recording_20240802_210028.mp4
Size

7.6MB
MD5

e06ffcaf40b56c6a6f23529c69194f49
SHA1

c33b56c2ebafcc9db29dfdc18b79f264d12beb36
SHA256

20fcdd16f39016ad9b0fb620d78781f33d810b8cd12afab033dff7af8c05f9fc
SHA512

df1a766e312f7c87e5d28a1b3af7a8a8613dc2dc735b04a7f3e6a23f829156552680c7e934097cbdcd0103263a8fda932d62b48d81064d8b46abb226716b36a6
SSDEEP

196608:UkYKWJcUZIcupMdWIUZP7D0RgQoHPlkRNXlkM5M:/jWJccINK4Q8kRhlkuM

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	wmplayer.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-786284298-625481688-3210388970-1000\{87D4314D-3FDE-42F1-A175-E564D6DE840A}	wmplayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer	wmplayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer\CLSID = "{cd3afa96-b84f-48f0-9393-7edc34128127}"	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4504	wmplayer.exe
Token: SeCreatePagefilePrivilege	4504	wmplayer.exe
Token: SeShutdownPrivilege	3224	unregmp2.exe
Token: SeCreatePagefilePrivilege	3224	unregmp2.exe
Token: 33	1116	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1116	AUDIODG.EXE
Token: SeShutdownPrivilege	4504	wmplayer.exe
Token: SeCreatePagefilePrivilege	4504	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4504	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 4052	4504	wmplayer.exe	83
PID 4504 wrote to memory of 4052	4504	wmplayer.exe	83
PID 4504 wrote to memory of 4052	4504	wmplayer.exe	83
PID 4052 wrote to memory of 3224	4052	unregmp2.exe	84
PID 4052 wrote to memory of 3224	4052	unregmp2.exe	84

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\Screen_Recording_20240802_210028.mp4"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4052
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:3224

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:4008

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4b0 0x4f8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

Filesize
512KB

MD5
ac3ee86217156be8e5269ec5e3e8c6d9

SHA1
79a95126e8c98ea46e602a72a56bd64b6859d2db

SHA256
cc4fce97c0c1ef96395d20f96add156b547ef9a03967373e41fd627d8047dd6e

SHA512
68142b57a3a5332a5cf97e5b7d954a803b1fe8d02670cc614b57b1e7daded2ad2358de240f7defd436256e702b008ba74078744c14b7261d19b936c1b709574e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

Filesize
1024KB

MD5
51eb1fc437074b4708e00046489e52bd

SHA1
6f6ea9b47704008711348422d397cd7724625f40

SHA256
2ab8478c8d6a46a613df7de2583c2fd7777345045a1c18d52244ed302b955df4

SHA512
ae830b06d19f1cf2c7d6972c5a1905750b123b3e561be208a6e13a43f1ed136e7e9611fc6ac9d94be8705f01c85aee2c6db9d15e95e5fbe5bad4448515b16988

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb

Filesize
68KB

MD5
9f16e181f16e7c4a0fd416848b287146

SHA1
769e9721fd562dcf8c327ec9eac29dcd9a6d54a3

SHA256
e195a89b80c5956ed9c356c51cc62c43ea7cd8033d0c5bcb04667c680d7d581b

SHA512
df443eea47e8af08c72e5cba377662020d14746d90217cad0d421b175f2f849e9d84bcc23352074cc92d081e3c6b1d208df9ac45ac2fe7851a2f412d452d470f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD

Filesize
498B

MD5
90be2701c8112bebc6bd58a7de19846e

SHA1
a95be407036982392e2e684fb9ff6602ecad6f1e

SHA256
644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf

SHA512
d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

Download Submit
C:\Users\Admin\AppData\Local\Temp\wmsetup.log

Filesize
1KB

MD5
63d352a6d63f7be9881d24c2c629e034

SHA1
c7e24a61650fec90a580c2ed90409b0eb6363fd1

SHA256
82e8d5105eb9aa356d6dffe5109fc05e56db89fd7fbf5e0f9082f6afc5d71c93

SHA512
8f883ed77dd879521099f96fe23142703cd362f1176c07eef7146abd4bc99efcc94630e2983b988a500345665899a8cf485d8601d5f21289a442110e327e8b4f

Download Submit
memory/4504-37-0x0000000006410000-0x0000000006420000-memory.dmp

Filesize
64KB

Download
memory/4504-33-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-34-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-38-0x0000000006440000-0x0000000006450000-memory.dmp

Filesize
64KB

Download
memory/4504-39-0x0000000006440000-0x0000000006450000-memory.dmp

Filesize
64KB

Download
memory/4504-41-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-40-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-42-0x0000000006440000-0x0000000006450000-memory.dmp

Filesize
64KB

Download
memory/4504-32-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-31-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4504-57-0x0000000007630000-0x0000000007640000-memory.dmp

Filesize
64KB

Download
memory/4504-64-0x0000000007630000-0x0000000007640000-memory.dmp

Filesize
64KB

Download